English (GB)
33
7.1 Direct calibration
Before calibration, make sure that:
•
the pump is installed with foot valve, injection
valve, etc. in the existing system.
•
the pump is running at the counter pressure it is
supposed to operate at (adjust the counter
pressure valve, if required).
•
the pump is operating with the correct suction lift.
To carry out a direct calibration, proceed as follows:
Action
Pump display
1. Prime the dosing head and the suction tubing.
2. Stop the pump. The green LED is flashing.
3. Fill a graduated glass with dosing liquid, Q
1
.
DME 60: approx. 1.5 l
DME 150: approx. 2.5 l
DME 375: approx. 6 l
DME 940: approx. 14 l
4. Read and note the quantity Q
1
.
5. Place the suction tubing in the graduated glass.
TM
02
706
7
031
5
6. Go to the calibration menu, see section
7. Press the
button twice.
8. The pump is performing 100 dosing strokes.
9. The factory-calibration value appears in the display.
10. Remove the suction tubing from the graduated
glass and read Q
2
.
11. Set the display value to Q
d
= Q
1
- Q
2
.
12. Confirm with the
button.
13. The pump is now calibrated and returns to the
operating display.
Set value to
Q
d
Operating display
Q
1
Q
2
Q
d